迄今为止

So far hundreds of innocent civilians have died at the hands of the terrorists.

今为止已有数百名无辜平民死于恐怖分子手。

He is looking to improve on his admittedly modest achievements so far.

今为止，他成就确不算大，他打算更进一步。

Up until now, potlatch to only see in North America and west North America, Melanesia and Papua.

今为止，夸富宴只见于北美洲和西北美洲、美拉尼西亚和巴布亚。

So far, XMRV, known fully as xenotropic murine leukemia virus-related virus, doesn't appear to replicate as quickly as HIV does.

今为止，全称异嗜性小鼠白血相关(Xenotropicmurineleukemiavirus-relatedvirus)XMRV复制速度似乎不像艾滋那么快。